Tool-operating appliance



June 4, 1929. R. K|ENZL 1,715,844

TooL OPERATING APPLIANGE Filed oct. 19, 1923 5 sheets-sheet l June 4,1929. R. KIENZL TOOL OPERATING PPLIANCE Filed Oct. 19, 1925 5Sheets-Sheet 2 Y A I /9 i l t I 74\ N llm y/\\\A\\ll/i/$ 27" 20 F y NwY@ 57 6. Z6 3' 14. 27 Z f6 f3 5 ,25 w f7* /5 1 ZZ 25 52 Il* #Hlxlfa/M 57f3 46' H.- mum 45 '52 June 4, 1929. l R, K|.ENZ| 1,715,844

TOOL OPERATING APPLIANCE "Filed oct. 19, 1925 s sheetssheet 3 A c l r 7v f/ 7a Patented June 4, 1929.

\ UNITED .STATES PATENT OFFICE.

RAYMUND IKIENZL, OF CLEVELAND, OHIO.

TOOL-OPERATING APPLIANCE.

Application led October 19, 1923. Serial No. 669,504.

My invention pertains to a. tool operating appliance and moreparticularly to means permitting the accomplishment of an adjustment-ofa shaping tool while the machine which carries it is running.

Shapers are necessarily of low speed production because of the lightcuts customarily made thereby. While the planing of fiat surfaces isordinarily associated as the work performed by a Shaper, I havediscovered and perfected means whereby surfaces neither straight norfiat may be shaped. Manifestly, the tilting of any substantial part of amachine tool of the character referred to would be both cumbersome andtoo slow. Likewise, any loosening of the tool proper in its retainingsocket or chuck preparatory to its readjustment therein would make itvery unlikely that the same center distance could be restored.

Accordingly, the object of my invention is to make possible the shapingof curved surfaced grooves by providing mechanism for imparting to artool a step-by-step orbit-al movement while the shaping machine is inoperation.

Adverting to the drawings, in which are shown preferred and modifiedforms of my invention:

Figure I is a side elevation of a portion of a Shaper showing the mannerin which'the tool is mounted thereon in embodiment of the principle ofmy invention.

Figure II is a front elevation of the major part of the structure shownin Figure I.

Figure III is an enlarged vertical section through the tool supportingand adjusting mechanism. v v Y Figure IV is a plan section on line IV-IVof Figure III.

Figure V is a vertical section on line V-V l of Figure III.

Figure VI is a fragmentary Yview showing a modified form of one tooladjusting mechanism.

Figure VII is ak vertical 'VIIfVII of Figure VI. l

Figure VIII is a fragmentary view of a simplified modification.

Figure IX is a side elevation of a modifisection on line cationincorporating the principle of my inyention with a different form oftool mounting. y

Figure X is a front elevation of the essential portions of Figure IX.

Figure I illustrates the employment of my invention on a shapercomprising a frame 1, carrying a vise 2 upon which is to be supported awork piece 3. Reciprocable on the frame 1 in a direction toward and awayfrom the work piece is a ram 4 carrying a vertically adjustable toolslide 5 to be actuated in the usual manner by a down feed screw control6. The tool slide 5 carries a tool head 7 on which is adjustably carrieda hanger 2'a provided with a curved slot 7b through which the set screw7C passes. Pivotally mounted upon a pin 8 whichpasses through the hangera at a right angle to the direction of reciprocation ofthe ram 4 is aconventional type ofclapper block 8a. Supported on the front side of theblock Sa is a tool post 9 provided with the usual set screw 10 whichlast mentioned pair of elements have long since been commonly employedfor clamping the tool Lin operative position. So much as has beendescribed in this paragraph is old and no claim is made thereto.

Instead of clamping a tool directly in the tool post 9, my inventioncomprehends the carrying by the post 9 of a structure incorporating thefeatures of my invention, such structure including a hollowed extensionmember 11 provided with a bore 12 extending vertically therethrough andopen at the top where a portion of its interior wall is provided withscrew threads 13. Just below the threads 13 a transverse key hole 14 isprovided. The lower end of the member 11 is provided with a somewhathorizontal bore 15 with which the lower end of the bore communicates asdoes also a U shaped channel 16 fashioned just to the rear of the bore12.

A semi-cylindrical key hole 17 passes through p with an annular groove20 adapted to lie 0pposed to the groove 14 to permit the insertion of apin 21 for the purpose of preventing endwise movement of the shaft 18. Asplit and therefore yielding lock screw surrounds the shaft 12 and isadapted to cooperate with the threads 13 to cause a binding actionsufficient to lock the shaft 18 against turning movement. The lower endof the shaft 18 is fashioned as a bevel pinion 23 which meshes with thebevel gear 24 tightly forced on a hollow sleeve 25 which is fitted inthe bore 15. At a point opposite the groove 17, the sleeve 25 issimilarly fashioned with an annular groove 26 to enable the insertion ofa locking pin 27 for preventing endwise movement of the sleeve 25 in thebore 15.

lVedge fitted withinr the bore'28 of the sleeve 25 is a stud 29 of aswivel block 30, the binding action botwecnopposed conical surfacesinteriorly on the sleeve 15 and eXteriorly on the stud 29 beingaccomplished by the tightening of a nut 3-1 on the screw threaded rear`end 32of 1the stud 29. The block 30 is of peculiar-construction7 *beingprovided with a channel 33 open above and below and in front,whic-hchannel has its rear wall intersected by arbore 34 likewiseopening out through the block at its ltop and bottom. Occuliying the`bore 34 is a stub shaft 35 having its upper end squared at 36 while itslower screw threaded yend `carries a Anut 37. The

middle sectionfof the shaft 35 is fashioned as a `worm screw 38. In `oneside wall ofthe block 30 is a bore *39, whereas in the opposite sidewall is a screw threaded bore 40, said bores beingin alignment landadapted to be occupied by a cap screw `4l which at the same time :passesthrough la Ihole 42 in a too-l holder 43 whereby the latter is pivotallymounted to swing up and down within the channel 33. The Area-r edge ofthe tool holder 43 is cut as a 4worm wheel segment 44 andis in mesh withthe worm 38. The tool holder 43 is fashioned with a`socket45 intendedfor the `insertion of the :shankof a tool 46 the latter rbeing fixed in:place by 4a setfscrew 47.

In operation, after .the work piece 3 lhas Y been mounted inposition andthe member 11 `held at the proper elevation with considera tion lof theyheightof the work `piecea further -more delicate adjustment `is madeptoestablish theelevation of the :cutting edge of the tool 46 fsuita ble toits first cut by applying a wrench to the squared end36and effecting thedegree of turning yadjustment through the engagement of the worm 38 andworm gear segment 44. The vise 2 will be held stationary and after eachstraight line out the shaft ,18 (while the Vmachine vcontinues to run)is givena slightturn to the right so `as slightly to turn the block 39in the directionof the indicating arrow shown in Figure Il whereby acylindrical groove may be `c ut as likewise shown in Figure il. T hestep `'by step depth adjustment of vthe tool to bevaccom-plished byai'ight hand turning Vof the stub shaft 35 is to be tmade only after thecompletion lof the series-of reciprocal cuts required to complete theprescribed curve. The' frequency with which the adjustment is made byturning the shaft 35 necessarily varies according to the curvilinearlength of the groove as cut, being less frequently accomplished as theextent of the curve or its depth increases. After each inutile returnmovementl of the Vtool 46 and prior to its forward cutting stroke theshaft 18 may be readily given a slight advance adjustment and as readilythereafter locked by the screw 22.

FiguresVl and VII portray a somewhat simpler means for effecting the upand down pivotal fadjustmentof the tool. A block 48 has an extension 49similarly clamped in the collar 25 but the block48 has `a channel 50open only belowinstead `of both above'and below. A flat shank 151i fof`the toellis *then pivotally mounted upon a Vcap f screw 52 and may beheld in any selected iposition 'of' 'adjustment by meansofthetwosetscrews 53 and 54` which pass through the upper `wall of theblock 48 to engagethe shankl inffront and behind the Vpivotal axis.

The modification shown `in Figure VH1?.

shows the mountinginfthe collar 25 ef asimple form of chuck'55 therearlend' of which is fashioned with 'screwthreads' 56 avitliavhich a nut 57cooperates to cause the ychuck55'to recede and clamp the `shankofa `tool58.

The final modification v.shown `on Sheet 3, Figures IX and X consists in'suspending from a'screw threaded extremity 59 v'which projects from thevfront of the `clapper-'block 8a (in substitution for the post 9) a`canrier or extension V6() by means of -a nut 61. The

carrier 60 is provided below wilt-han 'open slot 62 with which avertical bore63 communicates from above. A shaft 64 is mounted in thebore 63 and similarly has its lower fend" fashioned as a bevel pinion65. Anotherbore 66 crosses the channel 62and bore 63--and has fittedinit a collar 67 carryingabevel `gear 68 in mesh with the bevelpin-ionlf A chuck'69 passes through the collar 67 and our its screwthreaded rear Vend l70 carries'anut 71 whereby 'the chuck y69 ma-ybedrawn in to clamp the shank of a tool 7 2. As will beobserved, thepivotal up and downadjustment has, according to this modification,been;-

omitted but the swinging or turning-:movement may similarly ber effectedstep by 'step by turning the shaft 64 which is easily -accomplishedwhile the machine xis in operation.

It should be observed that an importanti structural distinctiondifferentiates-the disclosure of my application fromtheprior art,

Y which distinction-involves a lengthening of the distance between thepivotaxisof thereonventional tool-carrying clapper block andthe i edgeof a tool; together with an iarrangement which permits of eecting a'turningadjustment of my tool holder without'turning the pivot aXis ofthe clapper block.` I'f the pivot axis ofthe clapper block is turnedwhenever the turning adjustment is imparted to the tool it will cause ahindrance of its gravitational return against a backing memberpreparatory to the next forward or cutting stroke. According to myarrangement the tool holder 43 may be turned through an arc of 360 whileleaving the pivot axis 8 of my clapper block substantially horizontal.

I claim:

1. In an appliance of vthe character described, the combination of acarrier, a toolholder support turnably mounted on said carrier, atool-holder turnably momited on said support, said two axes of turningmovement lying Within the saine plane and a tool attached to said holderwith its axis at a right angle to and in the plane of the pivot of saidtool holder, said tool having a cutting end adapted effectively tointersect said plane in which both axes of turning movement lie.

2. In an appliance of the character described, the combination of acarrier, a toolholder support adjustable about an axis on said carrier,means for .adjusting said support, a device for locking said adjustingmeans, a tool-holder turnably adjustable about an axis on said supportwhich axis is at right angles yto said first mentioned axis, means forturnably adjusting and holding said tool-holder and a tool adjustablyattached to said holder and adapted for adjustment movement along theaxis oi' turning movement of said tool-holder support.

3. In an appliance of the character described, the combination of anextension, a carrier rotatably mounted thereon, a swivel block rotatablymounted on said carrier, means for rotatably adjusting said block, atool-holder pivotally mounted on said block for movement about an axisat an angle to the axis oi' rotational movement of said block, means forholding said tool-holder in position of adjustment and a tool adjustablycarried by said tool-holder and adapted to be adjusted along therotational axis of said block.

4. An appliance of the character described comprising the combination ofa reciprocable carrier, a tool slide mounted on said carrier and adaptedfor reciprocation in a direction transverse with respect to said carrierreciprocation, means for adjusting said slide, a clapper block on saidslide, a tool post carried by said clapper block, a structure includinga hollowed member secured to said post and also including a swivel blockrotatably mounted in said hollowed member, a tool-holder turnablymounted in said swivel block, means for imparting a turning movement tosaid tool-holder and means for turning said swivel block relative tosaid liollowed member.

Signed by me, this 29th day of September,

RAYMUND KIENZL.

